Design and application of drilling rod vibration frequency measurement system

Authors

LIU Naipeng, Faculty of Engineering, China University of Geosciences, Wuhan 430074, China
HU Yule, Faculty of Engineering, China University of Geosciences, Wuhan 430074, China; SinoProbe Center, Chinese Academy of Geological Sciences, Beijing 100190, ChinaFollow
WANG Wei, SinoProbe Center, Chinese Academy of Geological Sciences, Beijing 100190, China

Abstract

During drilling, resonance is generated when the natural frequency of the drilling rod is consistent with the external excitation frequency. This will cause fatigue-failure of the drilling rod and serious consequences. To avoid this, a drilling rod vibration measurement system based on Micro-Electro-Mechanical System was designed. This system uses the three-axis acceleration sensor to measure the acceleration of the drilling rod in three directions. The upper computer software written in LabVIEW can storage, upload, display and process data. Then the fast Fourier Transform was taken to analyze the vibration frequency of the drilling rod. Finally the system is installed on the drilling rod for testing and analyzing the longitudinal, transverse, torsional vibration frequency and rotational speed of the drilling rod. It provides accurate information for adjusting the drilling parameters and avoiding resonance damage of the drilling rod.

Keywords

drilling rod, vibration frequency, Micro-Electro-Mechanical System, three-axis acceleration

DOI

10.3969/j.issn.1001-1986.2019.01.033

Recommended Citation

LIU Naipeng, HU Yule, WANG Wei, et al. (2019) "Design and application of drilling rod vibration frequency measurement system," Coal Geology & Exploration: Vol. 47: Iss. 1, Article 34.
DOI: 10.3969/j.issn.1001-1986.2019.01.033
Available at: https://cge.researchcommons.org/journal/vol47/iss1/34

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